1 1134 100 EFFICACY OF YOGA IN PREGNANT WOMEN WITH ABNORMAL DOPPLER STUDY OF UMBILICAL AND UTERINE ARTERIES. TO STUDY THE EFFICACY OF YOGA ON THE OUTCOME OF COMPLICATED PREGNANCY, 121 WOMEN ATTENDING ANTENATAL CLINIC AT GUNASHEELA SURGICAL AND MATERNITY HOSPITAL (GSMH) IN BANGALORE, INDIA, WERE ENROLLED BETWEEN 18-20 WEEKS OF PREGNANCY IN A PROSPECTIVE, MATCHED, OBSERVATIONAL STUDY. SIXTY-EIGHT WOMEN WERE IN THE YOGA GROUP AND 53 WOMEN IN THE CONTROL GROUP. WOMEN WERE MATCHED FOR AGE, GRAVIDA AND DOPPLER VELOCIMETRY SCORES OF UMBILICAL AND UTERINE ARTERIES. YOGA PRACTICES INCLUDING PHYSICAL POSTURES, BREATHING AND MEDITATION WERE PRACTISED BY THE YOGA GROUP, ONE HOUR DAILY, FROM THE DATE OF ENTRY INTO THE STUDY UNTIL DELIVERY. THE CONTROL GROUP WALKED HALF AN HOUR TWICE A DAY DURING THE STUDY PERIOD. COMPLIANCE IN BOTH THE GROUPS WAS ENSURED. IN BABIES THE BIRTH-WEIGHT IS SIGNIFICANTLY HIGHER (P < 0.018) IN THE YOGA GROUP (2.78 +/- 0.52 KG), COMPARED TO THE CONTROL GROUP (2.55 +/- 0.52 KG). OCCURRENCE OF COMPLICATIONS OF PREGNANCY (PREGNANCY-INDUCED HYPERTENSION, INTRAUTERINE GROWTH RETARDATION, PRE-TERM DELIVERY) SHOWS LOWER TRENDS IN YOGA GROUP. 2005 2 1136 79 EFFICACY OF YOGA ON PREGNANCY OUTCOME. OBJECTIVE: TO STUDY THE EFFICACY OF YOGA ON PREGNANCY OUTCOMES. DESIGN AND SETTING: THREE HUNDRED THIRTY FIVE (335) WOMEN ATTENDING THE ANTENATAL CLINIC AT GUNASHEELA SURGICAL AND MATERNITY HOSPITAL IN BANGALORE, INDIA, WERE ENROLLED BETWEEN 18 AND 20 WEEKS OF PREGNANCY IN A PROSPECTIVE, MATCHED, OBSERVATIONAL STUDY; 169 WOMEN IN THE YOGA GROUP AND 166 WOMEN IN THE CONTROL GROUP. METHODS: WOMEN WERE MATCHED FOR AGE, PARITY, BODY WEIGHT, AND DOPPLER VELOCIMETRY SCORES OF UMBILICAL AND UTERINE ARTERIES. YOGA PRACTICES, INCLUDING PHYSICAL POSTURES, BREATHING, AND MEDITATION WERE PRACTICED BY THE YOGA GROUP ONE HOUR DAILY, FROM THE DATE OF ENTRY INTO THE STUDY UNTIL DELIVERY. THE CONTROL GROUP WALKED 30 MINUTES TWICE A DAY (STANDARD OBSTETRIC ADVICE) DURING THE STUDY PERIOD. COMPLIANCE IN BOTH GROUPS WAS ENSURED BY FREQUENT TELEPHONE CALLS AND STRICT MAINTENANCE OF AN ACTIVITY DIARY. MAIN OUTCOMES: BIRTH WEIGHT AND GESTATIONAL AGE AT DELIVERY WERE PRIMARY OUTCOMES. RESULTS: THE NUMBER OF BABIES WITH BIRTH WEIGHT > OR = 2500 GRAMS WAS SIGNIFICANTLY HIGHER (P < 0.01) IN THE YOGA GROUP. PRETERM LABOR WAS SIGNIFICANTLY LOWER (P < 0.0006) IN THE YOGA GROUP. COMPLICATIONS SUCH AS ISOLATED INTRAUTERINE GROWTH RETARDATION (IUGR) (P < 0.003) AND PREGNANCY-INDUCED HYPERTENSION (PIH) WITH ASSOCIATED IUGR (P < 0.025) WERE ALSO SIGNIFICANTLY LOWER IN THE YOGA GROUP. THERE WERE NO SIGNIFICANT ADVERSE EFFECTS NOTED IN THE YOGA GROUP. CONCLUSIONS: AN INTEGRATED APPROACH TO YOGA DURING PREGNANCY IS SAFE. IT IMPROVES BIRTH WEIGHT, DECREASES PRETERM LABOR, AND DECREASES IUGR EITHER IN ISOLATION OR ASSOCIATED WITH PIH, WITH NO INCREASED COMPLICATIONS. 2005 3 442 21 CEREBROVASCULAR DYNAMICS ASSOCIATED WITH YOGA BREATHING AND BREATH AWARENESS. AIMS: BREATH FREQUENCY CAN ALTER CEREBRAL BLOOD FLOW. THE STUDY AIMED TO DETERMINE BILATERAL MIDDLE CEREBRAL ARTERIAL HEMODYNAMICS IN HIGH-FREQUENCY YOGA BREATHING (HFYB) AND SLOW FREQUENCY ALTERNATE NOSTRIL YOGA BREATHING (ANYB) USING TRANSCRANIAL DOPPLER SONOGRAPHY. METHODS: HEALTHY MALE VOLUNTEERS WERE ASSESSED IN TWO SEPARATE TRIALS BEFORE, DURING, AND AFTER HFYB (2.0 HZ FOR 1 MIN, N = 16) AND ANYB (12 BREATHS PER MINUTE FOR 5 MIN, N = 22). HFYB AND ANYB WERE SEPARATELY COMPARED TO BREATH AWARENESS (BAW) AND TO CONTROL SESSIONS. STATISTICAL ANALYSIS: THE DATA WERE ANALYZED USING REPEATED-MEASURES ANOVA WITH BONFERRONI ADJUSTED POST HOC TESTS. RESULTS: DURING HFYB THERE WAS A DECREASE IN END-DIASTOLIC VELOCITY (EDV) AND MEAN FLOW VELOCITY (MFV) (P < 0.01 FOR LEFT AND P < 0.05 FOR RIGHT MIDDLE CEREBRAL ARTERIES; MCA) WITH AN INCREASE IN PULSATILITY INDEX (PI) FOR THE RIGHT MCA (P < 0.05). DURING ANYB, THERE WAS A BILATERAL DECREASE IN PEAK SYSTOLIC VELOCITY (P < 0.05 FOR LEFT AND P < 0.01 FOR RIGHT MCA), EDV (P < 0.01) AND MFV (P < 0.01 FOR LEFT AND P < 0.001 FOR RIGHT MCA) AND AN INCREASE IN PI (P < 0.01). DURING BAW OF THE TWO SESSIONS THERE WAS A DECREASE IN LATERALIZED FLOW AND END-DIASTOLIC VELOCITIES (P < 0.05) AND AN INCREASE IN PI (P < 0.05). CONCLUSIONS: CHANGES IN PEAK FLOW VELOCITIES AND PULSATILITY INDICES DURING AND AFTER HFYB, ANYB, AND BAW SUGGEST DECREASED CEREBROVASCULAR BLOOD FLOW AND INCREASED FLOW RESISTANCE BASED ON DIFFERENT MECHANISMS. 2022 4 267 40 ACUTE FETAL BEHAVIORAL RESPONSE TO PRENATAL YOGA: A SINGLE, BLINDED, RANDOMIZED CONTROLLED TRIAL (TRY YOGA). BACKGROUND: IN 2012, YOGA WAS PRACTICED BY 20 MILLION AMERICANS, OF WHOM 82% WERE WOMEN. A RECENT LITERATURE REVIEW ON PRENATAL YOGA NOTED A REDUCTION IN SOME PREGNANCY COMPLICATIONS (IE, PRETERM BIRTH, LUMBAR PAIN, AND GROWTH RESTRICTION) IN THOSE WHO PRACTICED YOGA; TO DATE, THERE IS NO EVIDENCE ON FETAL RESPONSE AFTER YOGA. OBJECTIVES: WE AIMED TO CHARACTERIZE THE ACUTE CHANGES IN MATERNAL AND FETAL RESPONSE TO PRENATAL YOGA EXERCISES USING COMMON STANDARDIZED TESTS TO ASSESS THE WELL-BEING OF THE MATERNAL-FETAL UNIT. STUDY DESIGN: WE CONDUCTED A SINGLE, BLINDED, RANDOMIZED CONTROLLED TRIAL. UNCOMPLICATED PREGNANCIES BETWEEN 28 0/7 AND 36 6/7 WEEKS WITH A NONANOMALOUS SINGLETON FETUS OF WOMEN WHO DID NOT SMOKE, USE NARCOTICS, OR HAVE PRIOR EXPERIENCE WITH YOGA WERE INCLUDED. A COMPUTER-GENERATED SIMPLE RANDOMIZATION SEQUENCE WITH A 1:1 ALLOCATION RATIO WAS USED TO RANDOMIZE PARTICIPANTS INTO THE YOGA OR CONTROL GROUP. WOMEN IN THE YOGA GROUP PARTICIPATED IN A 1-TIME, 1 HOUR YOGA CLASS WITH A CERTIFIED INSTRUCTOR WHO TAUGHT A PREDETERMINED YOGA SEQUENCE. IN THE CONTROL GROUP, EACH PARTICIPANT ATTENDED A 1-TIME, 1 HOUR POWERPOINT PRESENTATION BY AN OBSTETRICIAN ON AMERICAN CONGRESS OF OBSTETRICIANS AND GYNECOLOGISTS RECOMMENDATIONS FOR EXERCISE, NUTRITION, AND OBESITY IN PREGNANCY. ALL PARTICIPANTS UNDERWENT PRE- AND POSTINTERVENTION TESTING, WHICH CONSISTED OF UMBILICAL AND UTERINE ARTERY DOPPLER ULTRASOUND, NONSTRESS TESTING, A BIOPHYSICAL PROFILE, MATERNAL BLOOD PRESSURE, AND MATERNAL HEART RATE. A BOARD-CERTIFIED MATERNAL-FETAL MEDICINE SPECIALIST, AT A DIFFERENT TERTIARY CENTER, INTERPRETED ALL NONSTRESS TESTS AND BIOPHYSICAL PROFILE DATA AND WAS BLINDED TO GROUP ASSIGNMENT AND PRE- OR POSTINTERVENTION TESTING. THE PRIMARY OUTCOME WAS A CHANGE IN UMBILICAL ARTERY DOPPLER SYSTOLIC TO DIASTOLIC RATIO. SAMPLE SIZE CALCULATIONS INDICATED 19 WOMEN PER GROUP WOULD BE SUFFICIENT TO DETECT THIS DIFFERENCE IN DOPPLER INDICES (ALPHA, 0.05; POWER, 80%). DATA WERE ANALYZED USING A REPEATED-MEASURES ANALYSIS OF VARIANCE, A CHI(2), AND A FISHER EXACT TEST. A VALUE OF P < .05 WAS CONSIDERED SIGNIFICANT. RESULTS: OF THE 52 WOMEN RANDOMIZED, 46 (88%) COMPLETED THE STUDY. THERE WAS NO CLINICALLY SIGNIFICANT CHANGE IN UMBILICAL ARTERY SYSTOLIC TO DIASTOLIC RATIO (P = .34), PULSATILITY INDEX (P = .53), OR RESISTANCE INDEX (P = .66) BETWEEN THE 2 GROUPS BEFORE AND AFTER THE INTERVENTION. FETAL AND MATERNAL HEART RATE, MATERNAL BLOOD PRESSURE, AND UTERINE ARTERY DOPPLERS REMAINED UNCHANGED OVER TIME. WHEN UMBILICAL ARTERY INDICES WERE INDIVIDUALLY COMPARED WITH GESTATIONAL AGE REFERENCES, THERE WAS NO DIFFERENCE BETWEEN THOSE WHO IMPROVED OR WORSENED BETWEEN THE GROUPS. CONCLUSION: THERE WAS NO SIGNIFICANT CHANGE IN FETAL BLOOD FLOW ACUTELY AFTER PERFORMING YOGA FOR THE FIRST TIME IN PREGNANCY. YOGA CAN BE RECOMMENDED FOR LOW-RISK WOMEN TO BEGIN DURING PREGNANCY. 2016 5 2116 26 THE EFFECT OF YOGA ON UTERINE ARTERY DOPPLER INDICES, MATERNAL AND FETAL COMPLICATIONS IN PREGNANT WOMEN: A QUASI-EXPERIMENTAL STUDY. BACKGROUND: TODAY, THE EFFECT OF YOGA HAS BEEN EXAMINED ON VARIOUS PHYSICAL AND PSYCHOLOGICAL DIMENSIONS OF PREGNANT WOMEN. HOWEVER, THERE ARE STILL SPARSE STUDIES ON THE EFFECT OF YOGA ON THE UTERINE ARTERY INDICES AS WELL AS MATERNAL AND FETAL COMPLICATIONS. OBJECTIVE: THE AIM WAS TO DETERMINE THE EFFECT OF YOGA ON UTERINE ARTERY DOPPLER INDICES, MATERNAL AND FETAL COMPLICATIONS. MATERIALS AND METHODS: THIS QUASI-EXPERIENTIAL STUDY WAS CONDUCTED, ON 100 PREGNANT WOMEN. THE PARTICIPANTS WERE ASSIGNED TO YOGA AND CONTROL GROUPS. IN THE YOGA GROUP, THE PARTICIPANTS EXERCISED YOGA FOR 1 H. ON THE OTHER HAND, THE CONTROL GROUP RECEIVED ROUTINE CARE. RESULTS: THE RESULTS SHOWED THAT IN THE YOGA GROUP, THE FUNCTIONAL INDICES OF THE UTERINE ARTERY (S/D, PI, RI, AND DN) IMPROVED MORE SIGNIFICANTLY COMPARED TO THE CONTROL (P = 0.01). THE RESULTS ALSO SHOWED THAT IN THE YOGA GROUP, MATERNAL COMPLICATIONS (DIABETES AND PREECLAMPSIA), AS WELL AS FETAL COMPLICATIONS (SAG, IUGR), WERE SIGNIFICANTLY LOWER COMPARED TO THE CONTROL (P = 0.01). CONCLUSION: THIS STUDY REVEALED THE POSITIVE EFFECTS OF YOGA ON IMPROVING FETAL DEVELOPMENT INDICES AND REDUCING MATERNAL AND FETAL COMPLICATIONS FOLLOWING PREGNANCY. IT CAN BE USED AS A COMPLEMENTARY THERAPY ALONGSIDE OTHER TREATMENTS FOR MOTHERS. 2021 6 1092 33 EFFECTS OF YOGA ON UTERO-FETAL-PLACENTAL CIRCULATION IN HIGH-RISK PREGNANCY: A RANDOMIZED CONTROLLED TRIAL. INTRODUCTION. IMPAIRED PLACENTATION AND INADEQUATE TROPHOBLAST INVASION HAVE BEEN ASSOCIATED WITH THE ETIOLOGY OF MANY PREGNANCY COMPLICATIONS AND HAVE BEEN CORRELATED WITH THE FIRST TRIMESTER UTERINE ARTERY RESISTANCE. PREVIOUS STUDIES HAVE SHOWN THE BENEFITS OF YOGA IN IMPROVING PREGNANCY OUTCOMES AND THOSE OF YOGIC VISUALIZATION IN REVITALIZING THE HUMAN TISSUES. METHODS. 59 HIGH-RISK PREGNANT WOMEN WERE RANDOMIZED INTO YOGA (N = 27) AND CONTROL (N = 32) GROUPS. THE YOGA GROUP RECEIVED STANDARD CARE PLUS YOGA SESSIONS (1 HOUR/DAY, 3 TIMES/WEEK), FROM 12TH TO 28TH WEEK OF GESTATION. THE CONTROL GROUP RECEIVED STANDARD CARE PLUS CONVENTIONAL ANTENATAL EXERCISES (WALKING). MEASUREMENTS WERE ASSESSED AT 12TH, 20TH, AND 28TH WEEKS OF GESTATION. RESULTS. RM-ANOVA SHOWED SIGNIFICANTLY HIGHER VALUES IN THE YOGA GROUP (28TH WEEK) FOR BIPARIETAL DIAMETER (P = 0.001), HEAD CIRCUMFERENCE (P = 0.002), FEMUR LENGTH (P = 0.005), AND ESTIMATED FETAL WEIGHT (P = 0.019). THE RESISTANCE INDEX IN THE RIGHT UTERINE ARTERY (P = 0.01), UMBILICAL ARTERY (P = 0.011), AND FETAL MIDDLE CEREBRAL ARTERY (P = 0.048) SHOWED SIGNIFICANTLY LOWER IMPEDANCE IN THE YOGA GROUP. CONCLUSION. THE RESULTS OF THIS FIRST RANDOMIZED STUDY OF YOGA IN HIGH-RISK PREGNANCY SUGGEST THAT GUIDED YOGIC PRACTICES AND VISUALIZATION CAN IMPROVE THE INTRAUTERINE FETAL GROWTH AND THE UTERO-FETAL-PLACENTAL CIRCULATION. 2015 7 2169 35 THE EFFECTS OF YOGA IN PREVENTION OF PREGNANCY COMPLICATIONS IN HIGH-RISK PREGNANCIES: A RANDOMIZED CONTROLLED TRIAL. OBJECTIVE: WHILE PREVIOUS STUDIES HAVE SHOWN THE POTENTIAL EFFECTS OF YOGA IN NORMAL PREGNANCIES, THIS RANDOMIZED CONTROLLED TRIAL INVESTIGATED THE EFFECTS OF YOGA IN PREVENTION OF PREGNANCY COMPLICATIONS IN HIGH-RISK PREGNANCIES FOR THE FIRST TIME. METHODS: 68 HIGH-RISK PREGNANT WOMEN WERE RECRUITED FROM TWO MATERNITY HOSPITALS IN BENGALURU, INDIA AND WERE RANDOMIZED INTO YOGA AND CONTROL GROUPS. THE YOGA GROUP (N=30) RECEIVED STANDARD CARE PLUS ONE-HOUR YOGA SESSIONS, THREE TIMES A WEEK, FROM THE 12TH TO THE 28TH WEEK OF GESTATION. THE CONTROL GROUP (N=38) RECEIVED STANDARD CARE PLUS CONVENTIONAL ANTENATAL EXERCISES (WALKING) DURING THE SAME PERIOD. RESULTS: SIGNIFICANTLY FEWER PREGNANCY INDUCED HYPERTENSION (PIH), PREECLAMPSIA, GESTATIONAL DIABETES (GDM) AND INTRAUTERINE GROWTH RESTRICTION (IUGR) CASES WERE OBSERVED IN THE YOGA GROUP (P=0.018, 0.042, 0.049, 0.05 RESPECTIVELY). SIGNIFICANTLY FEWER SMALL FOR GESTATIONAL AGE (SGA) BABIES AND NEWBORNS WITH LOW APGAR SCORES (P=0.006) WERE BORN IN THE YOGA GROUP (P=0.033). CONCLUSION: THIS FIRST RANDOMIZED STUDY OF YOGA IN HIGH-RISK PREGNANCY HAS SHOWN THAT YOGA CAN POTENTIALLY BE AN EFFECTIVE THERAPY IN REDUCING HYPERTENSIVE RELATED COMPLICATIONS OF PREGNANCY AND IMPROVING FETAL OUTCOMES. ADDITIONAL DATA IS NEEDED TO CONFIRM THESE RESULTS AND BETTER EXPLAIN THE MECHANISM OF ACTION OF YOGA IN THIS IMPORTANT AREA. 2012 8 2671 24 YOGA IN PREGNANCY: AN EXAMINATION OF MATERNAL AND FETAL RESPONSES TO 26 YOGA POSTURES. OBJECTIVE: TO EXAMINE THE ACUTE MATERNAL AND FETAL EFFECTS OF YOGA POSTURES AND SUSPECTED CONTRAINDICATED POSTURES IN A PROSPECTIVE COHORT OF HEALTHY PREGNANT WOMEN IN THE THIRD TRIMESTER. METHODS: THIS WAS A PROSPECTIVE STUDY THAT EVALUATED PREGNANT WOMEN BETWEEN 35 0/7 AND 37 6/7 WEEKS OF GESTATION IN A ONE-ON-ONE YOGA SESSION. A BASELINE NONSTRESS TEST, VITAL SIGNS, AND PULSE OXIMETRY WERE PERFORMED. PARTICIPANTS THEN ASSUMED 26 YOGA POSTURES. VITAL SIGNS, PULSE OXIMETRY, TOCOMETRY, AND CONTINUOUS FETAL HEART RATE MONITORING WERE OBTAINED IN EACH POSTURE. POSTSESSION NONSTRESS TEST, VITAL SIGNS, AND PULSE OXIMETRY WERE OBTAINED. PARTICIPANTS WERE CONTACTED 24 HOURS POSTSESSION. RESULTS: TWENTY-FIVE HEALTHY PREGNANT WOMEN WERE EVALUATED. TEN REPORTED REGULAR YOGA PRACTICE, EIGHT WERE FAMILIAR WITH YOGA, AND SEVEN HAD NO YOGA EXPERIENCE. YOGA GROUPS WERE SIMILAR IN AGE, RACE, BODY MASS INDEX, GESTATIONAL AGE, AND PARITY. PRESESSION AND POSTSESSION NONSTRESS TESTS WERE REACTIVE. PRESESSION AND POSTSESSION DATA SHOWED NO CHANGE IN MATERNAL HEART RATE, TEMPERATURE, PULSE OXIMETRY, OR FETAL HEART RATE. DURING THE 26 YOGA POSTURES, VITAL SIGNS, PULSE OXIMETRY, AND UTERINE TOCOMETRY REMAINED NORMAL IN ALL WOMEN AND IN ALL POSTURES. THE FETAL HEART RATE ACROSS ALL 26 POSTURES WAS NORMAL. THERE WERE NO FALLS OR INJURIES DURING THE TOTAL CUMULATIVE 650 POSES. NO PARTICIPANTS REPORTED DECREASED FETAL MOVEMENT, CONTRACTIONS, LEAKAGE OF FLUID, OR VAGINAL BLEEDING IN THE 24-HOUR FOLLOW-UP. CONCLUSION: ALL 26 YOGA POSTURES WERE WELL-TOLERATED WITH NO ACUTE ADVERSE MATERNAL PHYSIOLOGIC OR FETAL HEART RATE CHANGES. LEVEL OF EVIDENCE: III. 2015 9 411 22 BLOOD PRESSURE AND HEART RATE VARIABILITY DURING YOGA-BASED ALTERNATE NOSTRIL BREATHING PRACTICE AND BREATH AWARENESS. BACKGROUND: PREVIOUS RESEARCH HAS SHOWN A REDUCTION IN BLOOD PRESSURE (BP) IMMEDIATELY AFTER THE PRACTICE OF ALTERNATE NOSTRIL YOGA BREATHING (ANYB) IN NORMAL HEALTHY MALE VOLUNTEERS AND IN HYPERTENSIVE PATIENTS OF BOTH SEXES. THE BP DURING ANYB HAS NOT BEEN RECORDED. MATERIAL/METHODS: PARTICIPANTS WERE 26 MALE VOLUNTEERS (GROUP MEAN AGE +/-SD, 23.8+/-3.5 YEARS). WE ASSESSED (1) HEART RATE VARIABILITY, (2) NON-INVASIVE ARTERIAL BP, AND (3) RESPIRATION RATE, DURING (A) ANYB AND (B) BREATH AWARENESS (BAW) SESSIONS. EACH SESSION WAS 25 MINUTES. WE PERFORMED ASSESSMENTS AT 3 TIME POINTS: PRE (5 MINUTES), DURING (15 MINUTES; FOR ANYB OR BAW) AND POST (5 MINUTES). A NAIVE-TO-YOGA CONTROL GROUP (N=15 MALES, MEAN AGE +/-SD 26.1+/-4.0 YEARS) WERE ASSESSED WHILE SEATED QUIETLY FOR 25 MINUTES. RESULTS: DURING ANYB THERE WAS A SIGNIFICANT DECREASE (REPEATED MEASURES ANOVA) IN SYSTOLIC BP AND RESPIRATION RATE; WHILE RMSSD (THE SQUARE ROOT OF THE MEAN OF THE SUM OF SQUARES OF DIFFERENCES BETWEEN ADJACENT NN INTERVALS) AND NN50 (THE NUMBER OF INTERVAL DIFFERENCES OF SUCCESSIVE NORMAL TO NORMAL INTERVALS GREATER THAN 50 MS) SIGNIFICANTLY INCREASED. DURING BAW RESPIRATION RATE DECREASED. IN CONTRAST, RESPIRATION RATE INCREASED DURING THE CONTROL STATE. ANYB AND BAW WERE SIGNIFICANTLY DIFFERENT (2-FACTOR ANOVA) IN RMSSD AND RESPIRATION RATE. BAW AND CONTROL WERE DIFFERENT WITH RESPECT TO RESPIRATION RATE. CONCLUSIONS: THE RESULTS SUGGEST THAT VAGAL ACTIVITY INCREASED DURING AND AFTER ANYB, WHICH COULD HAVE CONTRIBUTED TO THE DECREASE IN BP AND CHANGES IN THE HRV. 2014 10 1257 30 FETAL AND MATERNAL RESPONSES TO YOGA IN THE THIRD TRIMESTER. OBJECTIVE: THE PRIMARY PURPOSE OF THIS STUDY WAS TO EXAMINE MATERNAL AND FETAL RESPONSES TO A TYPICAL, MODERATE-INTENSITY YOGA SESSION IN HEALTHY PREGNANT WOMEN DURING THE THIRD TRIMESTER USING CONTINUOUS MONITORING.METHODS: THIS PROSPECTIVE OBSERVATIONAL STUDY IN LOW-RISK, PREGNANT WOMEN USED THE MONICA AN24 ABDOMINAL ECG WIRELESS MATERNAL-FETAL MONITOR TO MEASURE FETAL HEART RATE, MATERNAL HEART RATE, AND UTERINE ACTIVITY DURING A PRENATAL YOGA SESSION. SESSIONS INCLUDED 4 TIME PERIODS: (1) 20-MINUTE REST, (2) 50 MINUTES STANDARD PRENATAL YOGA, (3) 10-MINUTE MEDITATION, (4) 20-MINUTE RECOVERY. DATA WERE CONTINUOUSLY RECORDED THROUGHOUT THE ENTIRE SESSION, STORED AT 0.25-SECOND INTERVALS, AND THEN AVERAGED OVER 5-MINUTE INTERVALS. TO EVALUATE CHANGES OVER TIME, OVERALL MEANS FOR THE FOUR TIME PERIODS (REST, YOGA, MEDITATION, RECOVERY) WERE COMPARED USING ONE-WAY ANOVA WITH REPEATED MEASURES. POST-HOC PAIRWISE COMPARISONS (TUKEY'S) WERE USED TO PROBE SIGNIFICANT DIFFERENCES BETWEEN THE FOUR TIME POINTS. STATISTICAL SIGNIFICANCE WAS REACHED AT P < .05.RESULTS: TWENTY PARTICIPANTS WERE ENROLLED; 19 COMPLETED THE YOGA SESSION. MEAN GESTATIONAL AGE WAS 35 WEEKS AND 6 DAYS (RANGE OF 32-0/7 TO 38-6/7) WITH AN AVERAGE PARTICIPANT AGE OF 32 +/- 2.7 YEARS. MATERNAL HEART RATES SIGNIFICANTLY INCREASED DURING THE YOGA PERIOD (102 +/- 11 BPM) COMPARED TO REST (90 +/- 10), MEDITATION (85 +/- 12), AND RECOVERY (88 +/- 10) (P < .01). THE MAXIMUM MATERNAL HEART RATE REACHED DURING THE YOGA SESSION WAS 125 +/- 13 BPM. WHILE FETAL HEART RATES FLUCTUATED SLIGHTLY OVER THE COURSE OF THE YOGA SESSION, THERE WERE NO SIGNIFICANT FETAL HEART RATE DECELERATIONS TO SUGGEST DELETERIOUS FETAL EFFECTS. THERE WERE NO STATISTICALLY SIGNIFICANT DIFFERENCES AMONG RESTING (138 +/- 14 BPM), YOGA (137 +/- 11 BPM), MEDITATION (139 +/- 7 BPM), OR RECOVERY (135 +/- 22 BPM) FETAL HEART RATES (P = .814). UTERINE ACTIVITY WAS SIGNIFICANTLY GREATER DURING THE YOGA PERIOD COMPARED WITH THE OTHER TIME POINTS (P < .001).CONCLUSION: YOGA CAN BE RECOMMENDED FOR LOW-RISK WOMEN DURING PREGNANCY AS NO ADVERSE FETAL OR MATERNAL HEART RATE CHANGES WERE OBSERVED DURING A TYPICAL PRENATAL YOGA SESSION. 2020 11 765 38 EFFECT OF THE INTEGRATED APPROACH OF YOGA THERAPY ON PLATELET COUNT AND URIC ACID IN PREGNANCY: A MULTICENTER STRATIFIED RANDOMIZED SINGLE-BLIND STUDY. BACKGROUND: YOGA IMPROVES MATERNAL AND FETAL OUTCOMES IN PREGNANCY. PLATELET COUNT AND URIC ACID (UA) ARE VALUABLE SCREENING MEASURES IN HIGH-RISK PREGNANCY. AIM: TO EXAMINE THE EFFECT OF YOGA ON PLATELET COUNTS AND SERUM UA IN HIGH-RISK PREGNANCY. MATERIALS AND METHODS: THIS STRATIFIED RANDOMIZED CONTROLLED TRIAL, CONDUCTED BY S-VYASA UNIVERSITY AT ST. JOHN'S MEDICAL COLLEGE HOSPITAL AND GUNASHEELA MATERNITY HOSPITAL, RECRUITED 68 WOMEN WITH HIGH-RISK PREGNANCY (30 YOGA AND 38 CONTROLS) IN THE TWELFTH WEEK OF PREGNANCY. THE INCLUSION CRITERIA WERE: BAD OBSTETRICS HISTORY, TWIN PREGNANCIES, MATERNAL AGE < 20 OR > 35 YEARS, OBESITY (BMI > 30), AND GENETIC HISTORY OF PREGNANCY COMPLICATIONS. THOSE WITH NORMAL PREGNANCY, ANEMIA (< 10 GRAMS%DL), H/O CLOTTING DISORDERS; RENAL, HEPATIC OR HEART DISEASE; SEIZURE DISORDER; OR STRUCTURAL ABNORMALITIES IN THE PELVIS, WERE EXCLUDED. THE YOGA GROUP PRACTICED SIMPLE MEDITATIVE YOGA (THREE DAYS / WEEK FOR THREE MONTHS). RESULTS: AT BASELINE, ALL WOMEN HAD NORMAL PLATELET COUNTS (> 150X10(9)/L) WITH A DECREASE AS PREGNANCY ADVANCED. UA (NORMAL AT BASELINE) INCREASED IN BOTH GROUPS. NO ONE DEVELOPED ABNORMAL THROMBOCYTOPENIA OR HYPERURICEMIA. HEALTHY REDUCTION IN PLATELET COUNT (TWELFTH TO TWENTIETH WEEK) OCCURRED IN A HIGHER (P < 0.001, CHI(2) TEST) NUMBER OF WOMEN IN THE YOGA GROUP THAN THE CONTROL GROUP. A SIMILAR TREND WAS FOUND IN URIC ACID. SIGNIFICANTLY LESSER NUMBER OF WOMEN IN THE YOGA GROUP (N = 3) DEVELOPED PREGNANCY-INDUCED HYPERTENSION (PIH) / PRE-ECLAMPSIA (PE) THAN THOSE IN THE CONTROL GROUP (N = 12), WITH ABSOLUTE RISK REDUCTION (ARR) BY 21%. CONCLUSION: ANTENATAL INTEGRATED YOGA FROM THE TWELFTH WEEK IS SAFE AND EFFECTIVE IN PROMOTING A HEALTHY PROGRESSION OF PLATELETS AND URIC ACID IN WOMEN WITH HIGH-RISK PREGNANCY, POINTING TO HEALTHY HEMODILUTION AND BETTER PHYSIOLOGICAL ADAPTATION. 2013 12 1317 22 HEART RATE VARIABILITY CHANGES DURING HIGH FREQUENCY YOGA BREATHING AND BREATH AWARENESS. BACKGROUND: PRE AND POST COMPARISON AFTER ONE MINUTE OF HIGH FREQUENCY YOGA BREATHING (HFYB) SUGGESTED THAT THE HFYB MODIFIES THE AUTONOMIC STATUS BY INCREASING SYMPATHETIC MODULATION, BUT ITS EFFECT DURING THE PRACTICE WAS NOT ASSESSED. METHODS: THIRTY-EIGHT MALE VOLUNTEERS WITH GROUP AVERAGE AGE +/- S.D., 23.3 +/- 4.4 YEARS WERE EACH ASSESSED ON TWO SEPARATE DAYS IN TWO SESSIONS, (I) HFYB AND (II) BREATH AWARENESS. EACH SESSION WAS FOR 35 MINUTES, WITH 3 PERIODS, I.E., PRE (5 MINUTES), DURING HFYB OR BREATH AWARENESS (15 MINUTES) AND POST (5 MINUTES). RESULTS: THERE WAS A SIGNIFICANT DECREASE IN NN50, PNN50 AND THE MEAN RR INTERVAL DURING AND AFTER HFYB AND AFTER BREATH AWARENESS, COMPARED TO THE RESPECTIVE 'PRE' VALUES (P < 0.05) (REPEATED MEASURES ANOVA FOLLOWED BY POST-HOC ANALYSIS). THE LF POWER INCREASED AND HF POWER DECREASED DURING AND AFTER BREATH AWARENESS AND LF/HF RATIO INCREASED AFTER BREATH AWARENESS (P < 0.05). CONCLUSION: THE RESULTS SUGGEST THAT THERE WAS REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER HFYB AND INCREASED SYMPATHETIC MODULATION WITH REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER BREATH AWARENESS. 2011 13 1797 35 PRENATAL YOGA: EFFECTS ON ALLEVIATION OF LABOR PAIN AND BIRTH OUTCOMES. BACKGROUND: THIS STUDY WAS CONDUCTED TO TEST THE HYPOTHESIS THAT PRENATAL YOGIC EXERCISES ARE EFFECTIVE IN ALLEVIATING LABOR PAIN AND IMPROVING BIRTH OUTCOMES, BY COMPARING PREGNANT WOMEN UNDERTAKING YOGA WITH A CONTROL GROUP. TRIAL DESIGN: SINGLE BLINDED, PARALLEL RANDOMIZED CONTROL TRIAL. METHODS: TWO HUNDRED PRIMIGRAVID WOMEN OF 30 WEEKS OF GESTATION ONWARD WHO MET THE INCLUSION CRITERIA (PRIMIGRAVIDA, 20-35 YEARS OF AGE, GESTATIONAL AGE OF 30 WEEKS, NO PRIOR EXPERIENCE OF YOGA) WERE RANDOMLY ASSIGNED TO STUDY (N = 100) AND CONTROL GROUPS (N = 100) BY USING THE MINIMIZED RANDOMIZATION PROGRAM VERSION 2.01. THE STUDY GROUP RECEIVED THE INTERVENTION IN THE FORM OF INTEGRATED YOGA CONSISTING OF A SERIES OF 30-MIN PRACTICE SESSIONS AT THE 30TH, 32ND, 34TH, 36TH, 37TH, 38TH, AND 39TH WEEKS OF GESTATIONAL AGE. THE MATCHED CONTROL GROUP DID NOT PERFORM YOGA. THE PATIENTS WERE FOLLOWED TILL DELIVERY FOR MATERNAL COMFORT, ALLEVIATION OF LABOR PAIN, AND BIRTH OUTCOME. ALLEVIATION OF LABOR PAIN WAS ASSESSED BY USING NUMERICAL PAIN INTENSITY SCALE (NPIS), PAIN BEHAVIORAL OBSERVATIONAL SCALE (PBOS), AND MATERNAL DELIVERY COMFORT QUESTIONNAIRE. ONLY THE ASSESSORS WERE BLINDED. RESULTS: TWO HUNDRED PATIENTS WERE RANDOMIZED INTO 100 EACH IN CASE AND CONTROL GROUPS. FINAL ANALYSIS WAS DONE ON 75 PATIENTS IN EACH GROUP AFTER EXCLUSION DUE TO DEVELOPMENT OF COMPLICATIONS, LOSS TO FOLLOW-UP. THE REQUIREMENT OF INDUCTION OF LABOR AND ANALGESICS WAS SIGNIFICANTLY LESS IN THE STUDY GROUP (P < 0.044, P < 0.045). THERE WAS SIGNIFICANTLY MORE NUMBER OF NORMAL VAGINAL DELIVERIES (P < 0.037) AND LESS CAESAREAN SECTIONS (P < 0.048), SHORTER FIRST STAGE OF LABOR (P < 0.0003) IN THE STUDY GROUP PRACTICING YOGA. THE TOLERANCE OF PAIN WAS BETTER IN THE STUDY GROUP AS SHOWN BY NPIS (P < 0.001) AND PBOS SCORES (P < 0.0001). POSTPARTUM, THE MATERNAL COMFORT QUESTIONNAIRE SCORE SHOWED HIGHER COMFORT IN THE STUDY GROUP (P < 0.032). THE NUMBER OF LOW BIRTH WEIGHT BABIES WAS ALSO SIGNIFICANTLY LESS IN THE STUDY GROUP (P < 0.042). THERE WERE NO ADVERSE EFFECTS ATTRIBUTED TO YOGA. CONCLUSION: THE STUDY HAS HIGHLIGHTED THAT YOGA IS A NONINVASIVE, EASY TO LEARN MIND-BODY MEDICINE AND COMPLEMENTARY HEALTH PRACTICE, EFFECTIVE IN ALLEVIATION OF LABOR PAIN AND POSSIBLY IMPROVING BIRTH OUTCOME. 2018 14 2524 23 YOGA DURING PREGNANCY: EFFECTS ON MATERNAL COMFORT, LABOR PAIN AND BIRTH OUTCOMES. THIS STUDY EXAMINED THE EFFECTS OF A YOGA PROGRAM DURING PREGNANCY, ON MATERNAL COMFORT, LABOR PAIN, AND BIRTH OUTCOMES. A RANDOMIZED TRIAL WAS CONDUCTED USING 74-PRIMIGRAVID THAI WOMEN WHO WERE EQUALLY DIVIDED INTO TWO GROUPS (EXPERIMENTAL AND CONTROL). THE YOGA PROGRAM INVOLVED SIX, 1-H SESSIONS AT PRESCRIBED WEEKS OF GESTATION. A VARIETY OF INSTRUMENTS WERE USED TO ASSESS MATERNAL COMFORT, LABOR PAIN AND BIRTH OUTCOMES. THE EXPERIMENTAL GROUP WAS FOUND TO HAVE HIGHER LEVELS OF MATERNAL COMFORT DURING LABOR AND 2H POST-LABOR, AND EXPERIENCED LESS SUBJECT EVALUATED LABOR PAIN THAN THE CONTROL GROUP. IN EACH GROUP, PAIN INCREASED AND MATERNAL COMFORT DECREASED AS LABOR PROGRESSED. NO DIFFERENCES WERE FOUND, BETWEEN THE GROUPS, REGARDING PETHIDINE USAGE, LABOR AUGMENTATION OR NEWBORN APGAR SCORES AT 1 AND 5 MIN. THE EXPERIMENTAL GROUP WAS FOUND TO HAVE A SHORTER DURATION OF THE FIRST STAGE OF LABOR, AS WELL AS THE TOTAL TIME OF LABOR. 2008 15 2525 27 YOGA DURING PREGNANCY: THE EFFECTS ON LABOR PAIN AND DELIVERY OUTCOMES (A RANDOMIZED CONTROLLED TRIAL). OBJECTIVE: TO INVESTIGATE THE EFFECTS OF AN ANTENATAL YOGA PROGRAM ON PERCEIVED MATERNAL LABOR PAIN AND DELIVERY OUTCOMES. MATERIAL & METHODS: THIS RANDOMIZED CONTROL TRIAL WAS CONDUCTED WITH SIXTY PRIMIPAROUS WOMEN, AGED 18-35 YEARS OLD, WHO WERE RANDOMLY ASSIGNED TO EITHER AN ANTENATAL YOGA PROGRAM OR CONTROL GROUPS. LABOR PAIN AND DISCOMFORT LEVEL OF THE PARTICIPANTS WERE MEASURED USING A VISUAL ANALOGUE SCALE AT CERVICAL DILATATION OF 3-4 C AND AT 2 AND 4 H AFTER THE INITIAL MEASUREMENT. DEMOGRAPHIC AND OBSTETRICAL INFORMATION WERE COLLECTED. THE ANTENATAL YOGA PROGRAM CONSISTED OF A 1-H SUPERVISED YOGA CLASS, THREE TIMES A WEEKLY, STARTING AT 26 WEEKS GESTATION. . RESULTS: PARTICIPANTS IN CONTROL GROUP REPORTED HIGHER PAIN INTENSITY COMPARED TO EXPERIMENTAL GROUP AT 3-4 CM OF DILATATION (P = 0.01) AND AT 2 H AFTER THE FIRST AND THE SECOND MEASUREMENTS (P = 0.000). MOTHERS IN THE ANTENATAL INTERVENTION GROUP THAT COMPLETED THE YOGA CLASS REQUIRED A DECREASED FREQUENCY OF LABOR INDUCTION IN COMPARISON WITH CONTROL GROUP (P = 0.008). IN ADDITION, MODE OF DELIVERY OF THE INTERVENTION GROUP RESULTED IN A LOWER PERCENTAGE OF CESAREAN SECTION THAN CONTROL GROUP (P = 0.002). LASTLY, THE INTERVENTION GROUP EXPERIENCED A SHORTER DURATION OF THE SECOND AND THIRD STAGES OF LABOR. INTERVAL LEVEL DATA WAS ANALYZED BY USING AN INDEPENDENT T-TEST AND CHI-SQUARE. CONCLUSION: YOGA DURING PREGNANCY MAY CONTRIBUTE TO A REDUCTION PAIN OF LABOR AND IMPROVED ADEQUACY OF CHILDBIRTH. 2017 16 1353 19 IMMEDIATE EFFECT OF SPECIFIC NOSTRIL MANIPULATING YOGA BREATHING PRACTICES ON AUTONOMIC AND RESPIRATORY VARIABLES. THE EFFECT OF RIGHT, LEFT, AND ALTERNATE NOSTRIL YOGA BREATHING (I.E., RNYB, LNYB, AND ANYB, RESPECTIVELY) WERE COMPARED WITH BREATH AWARENESS (BAW) AND NORMAL BREATHING (CTL). AUTONOMIC AND RESPIRATORY VARIABLES WERE STUDIED IN 21 MALE VOLUNTEERS WITH AGES BETWEEN 18 AND 45 YEARS AND EXPERIENCE IN THE YOGA BREATHING PRACTICES BETWEEN 3 AND 48 MONTHS. SUBJECTS WERE ASSESSED IN FIVE EXPERIMENTAL SESSIONS ON FIVE SEPARATE DAYS. THE SESSIONS WERE IN FIXED POSSIBLE SEQUENCES AND SUBJECTS WERE ASSIGNED TO A SEQUENCE RANDOMLY. EACH SESSION WAS FOR 40 MIN; 30 MIN FOR THE BREATHING PRACTICE, PRECEDED AND FOLLOWED BY 5 MIN OF QUIET SITTING. ASSESSMENTS INCLUDED HEART RATE VARIABILITY, SKIN CONDUCTANCE, FINGER PLETHYSMOGRAM AMPLITUDE, BREATH RATE, AND BLOOD PRESSURE. FOLLOWING RNYB THERE WAS A SIGNIFICANT INCREASE IN SYSTOLIC, DIASTOLIC AND MEAN PRESSURE. IN CONTRAST, THE SYSTOLIC AND DIASTOLIC PRESSURE DECREASED AFTER ANYB AND THE SYSTOLIC AND MEAN PRESSURE WERE LOWER AFTER LNYB. HENCE, UNILATERAL NOSTRIL YOGA BREATHING PRACTICES APPEAR TO INFLUENCE THE BLOOD PRESSURE IN DIFFERENT WAYS. THESE EFFECTS SUGGEST POSSIBLE THERAPEUTIC APPLICATIONS. 2008 17 1610 23 METABOLIC AND VENTILATORY CHANGES DURING AND AFTER HIGH-FREQUENCY YOGA BREATHING. BACKGROUND PRACTICING HIGH-FREQUENCY YOGA BREATHING (HFYB) INDUCED A HYPERMETABOLIC STATE IN A SINGLE SUBJECT DURING THE PRACTICE BUT THE EFFECT HAS NOT BEEN STUDIED IN MULTIPLE PRACTITIONERS. MATERIAL AND METHODS HEALTHY MALE VOLUNTEERS (N=47, GROUP MEAN AGE +/- S.D., 23.2 +/- 4.1 YEARS) WERE RECRUITED AS AN EXPERIMENTAL GROUP AND ANOTHER TWENTY VOLUNTEERS WERE RECRUITED AS A CONTROL GROUP. THE EXPERIMENTAL GROUP PRACTICED EITHER HFYB (BREATH RATE 1.0 HZ) OR BREATH AWARENESS (BAW) ON TWO SEPARATE DAYS. THE SEQUENCE WAS REVERSED FOR ALTERNATE PARTICIPANTS. THE CONTROL GROUP WAS ASSESSED UNDER SIMILAR CONDITIONS WHILE SITTING AT EASE. THE BREATH RATE (RR), TIDAL VOLUME (VT), VENTILATION (VE), VO2, VCO2, ARTERIAL PCO2 AND ENERGY EXPENDITURE (EE KCAL/DAY) WERE ASSESSED FOR 35 MINUTES USING AN OPEN CIRCUIT OXYGEN CONSUMPTION ANALYZER. THE ASSESSMENT PERIOD WAS DIVIDED INTO BEFORE, DURING AND AFTER CONDITIONS. REPEATED MEASURES ANALYSES OF VARIANCE (ANOVA) WERE USED TO COMPARE DATA RECORDED DURING AND AFTER THE TWO PRACTICES WITH DATA RECORDED BEFORE. BEFORE-AFTER COMPARISONS IN THE CONTROL GROUP WERE WITH PAIRED T-TESTS. RESULTS THE MOST RELEVANT SIGNIFICANT CHANGES WERE INCREASES IN VE, VO2, VCO2 AND EE DURING HFYB, WHILE THE SAME VARIABLES DECREASED DURING THE CONTROL PERIOD. HOWEVER AFTER HFYB THERE WAS NO CHANGE IN VO2 OR EE, ALTHOUGH VE DECREASED AS IT DID AFTER THE CONTROL PERIOD. CONCLUSIONS HFYB INDUCES A HYPERMETABOLIC STATE FOR THE DURATION OF THE PRACTICE WHICH RETURNS TO BASELINE AFTER HFYB SUGGESTING A POSSIBLE APPLICATION FOR HFYB IN HYPOMETABOLIC STATES. 2015 18 2088 26 THE EFFECT OF PRACTICING YOGA DURING PREGNANCY ON LABOR STAGES LENGTH, ANXIETY AND PAIN: A RANDOMIZED CONTROLLED TRIAL. BACKGROUND: ANXIETY AND FEAR OF LABOR PAIN HAS LED TO ELEVATED CESAREAN SECTION RATE IN SOME COUNTRIES. THIS STUDY WAS CONDUCTED TO INVESTIGATE THE EFFECT OF YOGA IN PREGNANCY ON ANXIETY, LABOR PAIN AND LENGTH OF LABOR STAGES. METHODS: THIS CLINICAL TRIAL STUDY WAS PERFORMED ON 84 NULLIPAROUS WOMEN WHO WERE AT LEAST 18 YEARS OLD AND WERE RANDOMLY DIVIDED INTO TWO GROUPS OF YOGA AND CONTROL GROUPS. PREGNANCY YOGA PROGRAM CONSISTING OF 6 60-MIN TRAINING SESSIONS WAS STARTED EVERY 2 WEEKS FROM WEEK 26 OF PREGNANCY AND CONTINUED UNTIL 37 WEEKS OF GESTATION. ANXIETY SEVERITY AT MATERNAL ADMISSION TO LABOR WAS MEASURED BY THE SPIELBERGERS STATE-TRAIT ANXIETY INVENTORY, AND LABOR PAIN WAS MEASURED BY VISUAL ANALOGUE SCALE (VAS) AT DILATATION (4-5 CM) AND 2 H AFTER THE FIRST MEASUREMENT. DATA WERE ANALYZED USING CHI-SQUARE AND T-TEST. RESULTS: INTERVENTION GROUP REPORTED LESS PAIN AT DILATATION (4-5 CM) (P=0.001) AND 2 H AFTER THE FIRST MEASUREMENT (P=0.001) THAN THE CONTROL GROUP. STAT ANXIETY WAS ALSO LOWER IN INTERVENTION GROUP THAN THE CONTROL GROUP (P=0.003) AT THE ENTRANCE TO LABOR ROOM. SUBJECTS IN THE CONTROL GROUP REQUIRED MORE INDUCTION COMPARED TO INTERVENTION GROUP (P=0.003). WOMEN IN INTERVENTION GROUP EXPERIENCED SHORTER DURATION OF THE FIRST PHASE OF THE LABOR THAN THE CONTROL GROUP (P=0.002). ALSO, THE TOTAL DURATION OF TWO STAGES OF LABOR WAS SHORTER IN INTERVENTION GROUP THAN THE CONTROL GROUP (P=0.003). CONCLUSIONS: PRACTICING YOGA DURING PREGNANCY MAY REDUCE WOMEN'S ANXIETY DURING LABOR; SHORTEN LABOR STAGES, AND LOWER LABOR PAIN. 2020 19 72 24 A FUNCTIONAL NEAR-INFRARED SPECTROSCOPY STUDY OF HIGH-FREQUENCY YOGA BREATHING COMPARED TO BREATH AWARENESS. BACKGROUND HIGH-FREQUENCY YOGA BREATHING (BREATH RATE OF 2.0 HZ) HAS BEEN ASSOCIATED WITH CHANGES IN OXY-HEMOGLOBIN IN THE PREFRONTAL REGION OF THE BRAIN. THE PRESENT STUDY ASSESSED THE EFFECTS OF HIGH-FREQUENCY YOGA BREATHING (HFYB) AT 1.0 HZ ON FRONTAL OXY-HEMOGLOBIN (OXY-HB) AND DEOXY-HEMOGLOBIN (DEOXY-HB). MATERIAL AND METHODS FORTY HEALTHY MALE PARTICIPANTS WERE RECRUITED FOR THE STUDY. THE EXPERIMENTAL GROUP CONSISTED OF 20 PARTICIPANTS 23-40 YEARS OLD (GROUP MEAN +/-S.D., 26.4+/-4.7 YEARS) WITH AT LEAST 3 MONTHS OF EXPERIENCE PERFORMING HFYB (GROUP MEAN +/-S.D., 16.3+/-9.8 MONTHS). THE CONTROL GROUP CONSISTED OF 20 PARTICIPANTS AGES 23-38 YEARS (GROUP MEAN AGE +/- S.D., 27.4+/-4.1 YEARS), WHO WERE SEATED QUIETLY FOR THE SAME DURATION AND THEIR AVERAGE EXPERIENCE OF YOGA PRACTICE WAS (+/-S.D.) 4.3+/-2.7 MONTHS. EACH PARTICIPANT IN THE EXPERIMENTAL GROUP WAS ASSESSED AT 2 SESSIONS (HFYB AND BREATH AWARENESS [BAW]) ON ALTERNATE DAYS. HEMODYNAMIC CHANGES WERE ASSESSED USING A FUNCTIONAL NEAR-INFRARED SPECTROSCOPY SENSOR PLACED OVER THE FOREHEAD. DATA WERE ANALYZED USING REPEATED-MEASURES ANALYSES OF VARIANCE FOLLOWED BY POST HOC BONFERRONI ADJUSTMENT. RESULTS A SIGNIFICANT REDUCTION WAS OBSERVED IN OXY-HB DURING AND AFTER HFYB ON THE LEFT AND RIGHT SIDES COMPARED TO VALUES BEFORE. WE ALSO FOUND A SIGNIFICANT REDUCTION IN DEOXY-HB DURING AND AFTER THE QUIET SITTING CONTROL SESSION COMPARED TO PRE-SESSION VALUES ON LEFT AND RIGHT SIDES. CONCLUSIONS THE DECREASE IN OXY-HB DURING AND AFTER HFYB SUGGESTS THAT THERE WAS NO FRONTAL ACTIVATION DURING HFYB WHEN PRACTICED AT THE RATE OF 1.0 HZ. 2016 20 2523 28 YOGA DURING PREGNANCY: A REVIEW. THE PURPOSE OF THIS REVIEW ARTICLE IS TO EVALUATE THE PERIPARTUM OUTCOMES OF YOGA DURING PREGNANCY, INCLUDING THE POSTPARTUM PERIOD AND LACTATION. THE PUBMED DATABASE WAS ANALYZED FROM JANUARY 1970 TO JANUARY 2011. WE IDENTIFIED FIVE PROSPECTIVE OBSERVATIONAL STUDIES (N = 575) AND THREE RANDOMIZED CLINICAL TRIALS (RCTS; N = 298), WHICH WERE ANALYZED SEPARATELY. THE NONRANDOMIZED TRIALS INDICATED A SIGNIFICANT REDUCTION IN RATES OF PRETERM LABOR (P < 0.0006), INTRAUTERINE GROWTH RETARDATION (P <0.003), LOW BIRTH WEIGHT (P < 0.01), PREGNANCY DISCOMFORTS (P = 0.01), AND PERCEIVED SLEEP DISTURBANCES (P = 0.03) IN THOSE WHO PRACTICED YOGA DURING PREGNANCY. RESULTS OF THE RCTS INDICATED THAT DOING YOGA DURING PREGNANCY CAN SIGNIFICANTLY LOWER PAIN AND DISCOMFORT (P < 0.05) AND PERCEIVED STRESS (P = 0.001) AND IMPROVE QUALITY OF LIFE IN PHYSICAL DOMAINS (P = 0.001). ALL THREE RCTS WERE POORLY COMPLIANT WITH THE CONSOLIDATED STANDARD OF REPORTING TRIALS STATEMENT. WHILE AWAITING AN APPROPRIATELY DESIGNED RCT TO DETERMINE THE BENEFITS OF YOGA DURING PREGNANCY, IT REMAINS A VIABLE EXERCISE OPTION. 2012